초록 ▼

A body, such as a building to be heated or cooled, is surrounded by a wall structure forming two hollow spaces arranged in parallel to each other. An outer hollow space is connected to the atmosphere so that outside air can flow into the outer hollow space. A separation wall between the outer hollow

A body, such as a building to be heated or cooled, is surrounded by a wall structure forming two hollow spaces arranged in parallel to each other. An outer hollow space is connected to the atmosphere so that outside air can flow into the outer hollow space. A separation wall between the outer hollow and an inner hollow space has leakage paths for air to pass from the outer into the inner hollow space which is kept at a reduced pressure relative to the atmosphere to enhance an inward air flow through the leakage paths. Thus, heat passing outwardly through the wall structure heats or cools the air being evacuated from the inner hollow space, depending on the temperature gradient across the wall structure. The evacuated air passes through a heat recovery system which may be connected to a heating system of the building or to a heat storage or to the atmosphere.

대표청구항 ▼

A method for recovering heat transmitted through a wall structure enclosing an inner hollow volume relative to the atmosphere, comprising the following steps: (a) enclosing a substantial surface proportion of said structure with a first inner hollow space and a second outer hollow space separated fr

A method for recovering heat transmitted through a wall structure enclosing an inner hollow volume relative to the atmosphere, comprising the following steps: (a) enclosing a substantial surface proportion of said structure with a first inner hollow space and a second outer hollow space separated from each other by an intermediate separation wall, said second outer hollow space being separated from the atmosphere by an outer enclosure wall, (b) providing leakage flow paths through said intermediate separation wall for flow communication between said first and second hollow spaces, (c) locating duct means only at elevations as high as determined by said structure through said enclosure wall for flow communication between the atmosphere and said second outer hollow space, (d) sucking air out of said first inner hollow space for maintaining said first inner hollow space at a reduced pressure relative to the atmosphere, said reduced pressure in said inner hollow space causing an inward air flow from said second outer hollow space through said leakage flow paths into said first inner hollow space, said inward air flow travelling substantially in a direction opposite to any outward heat transmission through said intermediate separation wall, whereby said inward air flow takes up heat from said outward heat transmission, and (e) recovering heat from air sucked out of said first inner hollow space for heating or air conditioning.